CN210100708U - LED light screen 3D printer - Google Patents
LED light screen 3D printer Download PDFInfo
- Publication number
- CN210100708U CN210100708U CN201920350746.3U CN201920350746U CN210100708U CN 210100708 U CN210100708 U CN 210100708U CN 201920350746 U CN201920350746 U CN 201920350746U CN 210100708 U CN210100708 U CN 210100708U
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- Prior art keywords
- storage tank
- liquid storage
- screen
- light source
- liquid crystal
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Abstract
The utility model belongs to the technical field of novel printing apparatus, concretely relates to LED optical screen 3D printer. The upper and lower polarizing films are correspondingly arranged on the upper surface and the lower surface of the liquid crystal screen, the liquid storage tank is arranged on the upper part of the upper polarizing film, a liquid storage tank bottom film is paved in the liquid storage tank, the light-cured resin is filled in the liquid storage tank, and the curing molding supporting plate is arranged on the upper part of the liquid storage tank; the Fresnel lens is arranged below the lower polarization film, and the focusing lens is arranged below the Fresnel lens. The utility model discloses a LCD screen, LCD screen's demonstration precision is high. The size precision of the product which is imaged through the liquid crystal screen is high and can reach 0.16mm at most.
Description
Technical Field
The utility model belongs to the technical field of novel printing apparatus, concretely relates to LED optical screen 3D printer.
Background
3D printing is a novel rapid prototyping manufacturing technique. It is produced by multilayer superposition growth principle. The special structure obstacle that traditional machining can not realize can be overcome to it. The simplified production of any complex structural component can be realized. The existing 3D printing technology is divided into a hot-melt plastic basic technology FDM. And (3) laser sintering molding technology. The light-cured liquid resin is cured in selective areas. Existing photo-curing printers are classified as: 1. the method comprises the following steps of (1) laser drawing imaging ultraviolet spectrum photocuring technology, 2) projector imaging irradiation molding technology, and 3) laser scanning imaging photocuring technology. Existing curing printers have optical path assignments that necessitate large equipment sizes to meet the requirements of the optical path configuration.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the not enough of prior art, provide a LED light screen 3D printer that light path is short, equipment size is little.
The utility model discloses a realize through following technical scheme:
A3D printer of an LED light screen is composed of a light source, a focusing lens, a Fresnel lens, an upper polarizing film, a liquid crystal screen, a lower polarizing film, a liquid storage tank bottom film, light-cured resin and a curing molding supporting plate, wherein the upper polarizing film and the lower polarizing film are correspondingly arranged on the upper surface and the lower surface of the liquid crystal screen; the Fresnel lens is arranged below the lower polarizing film, the focusing lens is arranged below the Fresnel lens, and the light source is arranged on the focusing lens.
Preferably, the light source is an ultraviolet light source.
Preferably, the ultraviolet light source is a semiconductor LED light source.
Preferably, the resolution of the liquid crystal display screen is 1280X 768 pixels.
Preferably, the wavelength of the light source is 375-405 NM.
The principle of the utility model is as follows: the light source penetrates through the focusing lens to enable the light source to be uniformly distributed. The fresnel mirror directs light perpendicularly onto the liquid crystal screen. The two sides of the liquid crystal screen are respectively provided with a polarizing film which is the imaging basis of the liquid crystal display, and any liquid crystal screen has the polarizing film. The imaging display of the liquid crystal screen is transparent, images can be irradiated on the light-cured resin through the liquid crystal screen, and the light-cured resin liquid between the curing molding piece supporting plate and the liquid storage tank bottom film is cured under the light-transmitting irradiation of the liquid crystal screen. And lifting the cured part by the cured molded part supporting plate, replenishing liquid, descending the cured molded part supporting plate again, and exposing the thin layer between the cured molded part supporting plate and the liquid storage tank bottom film again.
Compared with the prior art, the utility model discloses following beneficial effect has: 1. the utility model discloses a LCD screen, LCD screen's demonstration precision is high. The size precision of the product which is imaged through the liquid crystal screen is high and can reach 0.16mm at most. 2. Because the liquid crystal screen is formed by direct contact, the deformation rate of the pattern is low, and the precision of the produced product is further ensured. 3. The utility model discloses an equipment need not have the light path distribution, does not need very big equipment size to satisfy, under the same production and processing condition, the utility model discloses a light path is shortest, and machine size is minimum. Adopt the machine of the same size, the utility model discloses a machining dimension is the several times of other machine tooling part size. 4. The utility model discloses a wavelength is 375-405 NM's LED light source, only with 1% -10% consumption of projecting apparatus just can satisfy the condition that photocuring resin does photocuring.
Drawings
Figure 1 is a schematic structural diagram of the present invention,
in the figure: the manufacturing method comprises the following steps of 1, a light source, 2, a focusing lens, 3, a Fresnel lens, 4, a liquid crystal screen, 5, a polarizing film, 7, a liquid storage tank bottom film, 8 and 9, wherein the light curing resin and the curing molding piece supporting plate are arranged on the same plane.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, but the scope of the present invention is not limited by the examples.
Example 1
The LED light screen 3D printer shown in fig. 1 comprises a light source, a focusing lens, a fresnel lens, an upper polarizing film, a liquid crystal screen, a lower polarizing film, a liquid storage tank bottom film, a light-cured resin, and a curing molding pallet, wherein the upper and lower polarizing films are correspondingly disposed on the upper and lower surfaces of the liquid crystal screen, the liquid storage tank is disposed on the upper polarizing film, the liquid storage tank bottom film is laid in the liquid storage tank, the light-cured resin is contained in the liquid storage tank, and the curing molding pallet is disposed on the upper portion of the liquid storage tank; the Fresnel lens is arranged below the lower polarizing film, the focusing lens is arranged below the Fresnel lens, and the light source is arranged on the focusing lens. The light source adopts an ultraviolet light source. The ultraviolet light source adopts a semiconductor LED light source. The wavelength of the light source is 375-405 NM. The resolution of the liquid crystal display screen is 1280X 768 pixels.
The present embodiment utilizes the liquid crystal display LCD imaging principle, and is driven by a microcomputer and a display screen driving circuit to provide image signals through a computer program. Selective transparent areas appear on the liquid crystal panel. Under the irradiation of the ultraviolet light source, the obstruction of the ultraviolet light to the image transparent area of the liquid crystal screen is reduced, and in the area without image display, the ultraviolet light is blocked. The ultraviolet light transmitted through the liquid crystal panel constitutes an ultraviolet image region. The liquid storage tank is arranged on the surface of the liquid crystal screen, the light-cured resin is filled in the liquid storage tank, the bottom of the liquid storage tank is a transparent liquid storage tank bottom film, ultraviolet light irradiates the liquid light-cured resin through the liquid storage tank bottom film, the resin irradiated by the ultraviolet light is subjected to curing reaction, and the irradiated liquid resin becomes a solid state. The opaque portion of the liquid crystal screen blocks ultraviolet light. The liquid light-curing resin of the shielded part is not irradiated by ultraviolet rays, and the part of the resin which is not irradiated still keeps liquid. The cured resin is the molded part of the product made by our 3D printer.
Claims (5)
1. A3D printer of LED light screen, by light source, focusing lens, Fresnel lens, upper polarization membrane, liquid crystal screen, lower polarization membrane, liquid storage tank basement membrane, light-cured resin, solidification molded part brace make up, characterized by that, said upper, lower polarization membrane set up on upper surface and lower surface of the liquid crystal screen correspondingly, the liquid storage tank sets up on the upper portion of polarization membrane, the basement membrane of liquid storage tank has been laid in the liquid storage tank, the light-cured resin is packed in the liquid storage tank, the said solidification molded part brace is set up on the upper portion of the liquid storage tank; the Fresnel lens is arranged below the lower polarizing film, the focusing lens is arranged below the Fresnel lens, and the light source is arranged on the focusing lens.
2. The LED light screen 3D printer according to claim 1, wherein the light source is an ultraviolet light source.
3. The LED light screen 3D printer according to claim 2, wherein the ultraviolet light source is a semiconductor LED light source.
4. The LED light screen 3D printer according to claim 1, wherein the resolution of the liquid crystal screen is 1280X 768 pixels.
5. The LED light screen 3D printer according to claim 1, wherein the light source has a wavelength of 375-405 NM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920350746.3U CN210100708U (en) | 2019-03-20 | 2019-03-20 | LED light screen 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920350746.3U CN210100708U (en) | 2019-03-20 | 2019-03-20 | LED light screen 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210100708U true CN210100708U (en) | 2020-02-21 |
Family
ID=69533320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920350746.3U Expired - Fee Related CN210100708U (en) | 2019-03-20 | 2019-03-20 | LED light screen 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210100708U (en) |
-
2019
- 2019-03-20 CN CN201920350746.3U patent/CN210100708U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |